Pain after sex/materbation

Hey so I’ve recently only just started to be sexually active, I’m 19, I wasn’t really waiting for anything I just wanted it to happen naturally and didn’t wanna feel forced or pressured.

I’ve only had sex 3 times since last November but have masterbated for years! But I find if I materbate and use anything to penetrate myself with I experience some pain and discomfort after for either a couple hours to a few days depending on how hard/long I went for. And the same thing happened after every time I had sex. And I know this probably shouldn’t be normal! I also find it so hard to orgasm from penetration alone and need some clitoral stimulation.

I found out I have PCOS a few years ago and suspected Endo but when I went for my lap they couldn’t find anything but due to the depo shot messing up my periods I hadn’t bled for 2 years so didn’t know whether that affected the results? As I know with endo it can also cause pain during and after sex.

Has anyone else had similar experiences and how you have overcome it or found ways to make it easier?